air conditioner
Full Disclosure:  I'm in the A/C business and do sell the occasional marine A/C.Most people seem to buy the cheapest possible air conditioner to put on their very expensive boat.  Why are they supprised when it doesn't work?  Most A/C pumps are fountain pumps... like you would have in your garden... with plastic strainers and fittings.  A guy in my yacht club got a new A/C and the compressor threw a rivet.  He got it replaced under warranty... and it quit again.  He bought a $1500 air conditioner for an $80,000 boat.  He hasn't had A/C for a year.  The minimum I ever quote (and I'm not soliciting here) is $2500 for a marine install.  For a C36 it would be considerably more.  I have a program to calculate BTU load on a boat.  I'll be glad to run your boat through it if you like.  bkerr@offroadair.com  Disclaimer: I'm not trying to sell any air conditioners here... don't take me wrong.